Hello @greenleaf

An example using a kalman filter.

https://homemadegarbage.com/reactionwheel03

https://elchika.com/article/52f804c0-e205-4185-8da4-a32f5e3700ba/

Hello @User1234567

1: The ESPAsyncWebServer seems to be pressing the M5Stack's ButtonA.

M5.BtnA.wasPressed() conflicts with WiFi
https://forum.m5stack.com/topic/3262/m5-btna-waspressed-conflicts-with-wifi

I made a Nixie tube clock with M5StickC.
Creation date: 2019.06.06
Creator: macsbug
blog：https://macsbug.wordpress.com/2019/06/06/m5stickc-nixie-tube-clock/

The original author of the following three articles is macsbug.

1 . M5Stack Community / PROJECTS：
Nixie tube watch simulated on M5Stick-C
http://forum.m5stack.com/topic/1085/nixie-tube-watch-simulated-on-m5stick-

2 . hackster.io：Nixie Tube Watch Simulated on ESP32 Using the M5Stick
https://www.hackster.io/McOrts/nixie-tube-watch-simulated-on-esp32-using-the-m5stick-7ab9d9

3 . McOrts/M5StickC_Nixie_tube_Clock：jun 17,2019
https://github.com/McOrts/M5StickC_Nixie_tube_Clock

LVGL ( Light and Versatile Graphics Library )
https://lvgl.io/

How to run LVGL on M5Stack ( ESP32 ) : 2021.06.18
https://macsbug.wordpress.com/2021/06/18/how-to-run-lvgl-on-m5stack-esp32/
( Demo of M5Stack and M5Core2 )

LVGL with M5Stack Part 2 : 2021.07.03
https://macsbug.wordpress.com/2021/07/03/lvgl-with-m5stack-part-2/

CO2 monitor with M5Stack and LVGL : 2021.07.05
https://macsbug.wordpress.com/2021/07/05/co2-monitor-with-m5stack-and-lvgl/

@lwtsde said in M5Paper STL Files available?:

M5Paper

Hello!

It depends on the accuracy of the 3D Printer.
M5 Paper requires high accuracy.
You need a high-precision printer.
The accuracy of the printer for amateurs is about 0.4mm width.
I think it is impossible because the accuracy is low.

How to run LVGL on M5Stack
https://forum.m5stack.com/topic/3613/how-to-run-lvgl-on-m5stack/1

Hello@MoodyGeorge

An example of adding M5.lcd.drawJpg to M5StickC.
anoken/m5stickc_arduino.ino
https://gist.github.com/anoken/8b0ce255e9aef9d1a7f4d46272cedcaa

reference
https://twitter.com/nnn112358/status/1218447646009937920

I made M5Stack Wheel Module.
Creation date : 2019.08.21
Creator : macsbug
COST : JPY 1500 ( $14 )
blog : https://macsbug.wordpress.com/2019/08/21/m5-wheel-module-moio/

The following modules are also used:

1 . 2400mA Battery Module：2018.08.20
COST : JPY 760 ( $7 )
blog : https://macsbug.wordpress.com/2018/08/20/m5stack-strongest-2400-mah-battery-module/

2 . Make M5Stack Servo Module：2019.08.10
COST : JPY 330 ( $4 )
blog : https://macsbug.wordpress.com/2019/08/10/make-m5stack-servo-module/

Hello @dave17

How to run LVGL on M5Stack
https://community.m5stack.com/topic/3613/how-to-run-lvgl-on-m5stack

LVGL 8 demo with M5Stack , M5Stamp C3
https://community.m5stack.com/topic/4161/lvgl-8-demo-with-m5stack-m5stamp-c3

Hello @Dieter_P

I don't own ATOM Lite (ESP32-PICO-D4), so I haven't checked it.

1. Does the problem occur when using WiFi?
2. You need to check the signal of GPIO39.
   ：

In M5Stack (ESP32-D0WDQ6-V3), there is a case where GPIO39 works without permission when using WiFi.
M5.BtnA.wasPressed() conflicts with WiFi
https://forum.m5stack.com/topic/3262/m5-btna-waspressed-conflicts-with-wifi
：

Supplement：
Example of using GPIO39.
M5Stack Basic (ESP32-D0WDQ6-V3)：PULL UP with 100KΩ.
ATOM PSRAM (ESP32-V3-02)：PULL UP with 5.1KΩ.
M5Stamp Pico (ESP32-PICO-D4)：PULL UP with 5.1KΩ.

Hello@ Windorey

The library for fast rendering is LovyanGFX.
It has the function of DMA.
LovyanGFX is about 3 times faster than TFT-eSPI.
https://github.com/lovyan03/LovyanGFX

：
The authors of LovyanGFX have created M5Unified.
M5Unified is he faster than M5Stack.
M5Unified：
https://github.com/m5stack/M5Unified

Hello@mgrouch

LVGL is a good GUI.
LVGL(Light and Versatile Graphics Library)
https://lvgl.io/
LVGL always evolves and requires a description that suits Version.

How to run LVGL on M5Stack : v7.11.0
https://forum.m5stack.com/topic/3613/how-to-run-lvgl-on-m5stack

How to run LVGL on M5Stack ( ESP32 )
https://macsbug.wordpress.com/2021/06/

LVGL with M5Stack Part 2
https://macsbug.wordpress.com/2021/07/03/lvgl-with-m5stack-part-2/

CO2 monitor with M5Stack and LVGL
https://macsbug.wordpress.com/2021/07/05/co2-monitor-with-m5stack-and-lvgl/

Hello@theMusicMan

M5Stack Core2 uses:

m5stack/M5Core2
https://github.com/m5stack/M5Core2

Hello@aezero

There is SD-Updater as a way to flash with .bin.

lovyan03/M5Stack_LovyanLauncher
Application startup by SD-Updater
https://github.com/lovyan03/M5Stack_LovyanLauncher

Youtube : M5Stack Lovyan Launcher - Ultimate Menu System
https://www.youtube.com/watch?v=2MyFKLZKJ2A

：
M5Stack-SD-Updater : 2018.03.12
https://macsbug.wordpress.com/2018/03/12/m5stack-sd-updater/
：
Github : tobozo/M5Stack-SD-Updater
https://github.com/tobozo/M5Stack-SD-Updater
Youtube : tobozo tagada : M5Stack Apps loaded from SD Card
https://www.youtube.com/watch?time_continue=13&v=myQfeYxyc3o

Hello@margel

The description in m5-docs is done with setTextColor.

https://github.com/m5stack/m5-docs/blob/master/docs/en/api/lcd.md
setTextColor( color, backgroundcolor )

Hello@caccum

M5Stack Core2　初期化(工場出荷状態に)してみた
M5Stack Core2 I tried to initialize (factory settings)
https://w-tori.net/wp/m5stack-core2-reset/

M5Stack Core2を工場出荷時のファームに戻す
Restore M5Stack Core2 to Factory Farm
https://qiita.com/Toshiaki0315/items/407cd7b0ed87f7f50617

Hello@jerome83136

Make using the following products.

Smart Food Dispenser Pets New Inventions Cat Puppy Timing Feeder Microchip Rfid Automatic Dog Plate

https://www.alibaba.com/product-detail/Smart-Food-Dispenser-Pets-New-Inventions_1600508280273.html

https://www.aliexpress.com/item/1005004305910681.html

https://www.aliexpress.com/item/1005004313818854.html

Hello@admiralmaggie

It depends on the type of HDMI Display.

Not Display Module 13.2, but...
For ATOM Display and TOSHIBA REGZA：
(1920/4,1080/4,24);
(640,360,60);
(320,180,60,1280,720);
(320,240,60,3204,2403);
(500,300,60,1280,720);
(500,300,24,1920,1080);
(480,320,24,1920,1080);
(480,320,60,1280,720);
(500,300,60,1280,720);

Hello@João Rodrigues

tobozo/M5Stack-SD-Updater
https://github.com/tobozo/M5Stack-SD-Updater

M5Stack-SD-Updater
https://macsbug.wordpress.com/2018/03/12/m5stack-sd-updater/

lovyan03/M5Stack_LovyanLauncher
https://github.com/lovyan03/M5Stack_LovyanLauncher

LovyanLauncher
https://twitter.com/lovyan03/status/1127119598602448896

The cause is the ESP32 bug.

M5Stack Community :
M5.BtnA.wasPressed() conflicts with WiFi
https://forum.m5stack.com/topic/3262/m5-btna-waspressed-conflicts-with-wifi

This is a report of measures for the A button of M5Stack and the B button of M5Stick C to operate without permission.
ButtonA on M5Stack does not work properly : May 02, 2021

void setup(){
WiFi.begin();
WiFi.setSleep(false);
}

or

#include <driver/adc.h>
void setup(){
adc_power_acquire(); // ADC Power ON

:

blog :
ButtonA on M5Stack does not work properly : May 02, 2021
https://macsbug.wordpress.com/2021/05/02/buttona-on-m5stack-does-not-work-properly/